Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2025 9 9.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/11/2025   00:51:54   ( -74.33, -24.71) 09/11/2025   00:52:40  ( -74.32, -24.59)    3.64                46
 09/11/2025   01:42:38   (  74.25, 142.82) 09/11/2025   01:41:59  (  74.23, 142.87)    2.36                39
 09/13/2025   11:13:33   (  74.28,   0.01) 09/13/2025   11:14:12  (  74.30,  -0.08)    3.42                39
 09/13/2025   12:04:16   ( -74.23, 167.46) 09/13/2025   12:03:34  ( -74.25, 167.47)    2.26                42
 09/15/2025   21:35:12   ( -74.32,  24.51) 09/15/2025   21:35:47  ( -74.30,  24.49)    1.46                35
 09/15/2025   22:25:56   (  74.23,-167.95) 09/15/2025   22:25:05  (  74.25,-167.95)    3.02                51
 09/18/2025   07:56:52   (  74.32,  49.09) 09/18/2025   07:57:17  (  74.34,  49.15)    3.23                25
 09/18/2025   08:47:35   ( -74.27,-143.47) 09/18/2025   08:46:40  ( -74.25,-143.41)    2.97                55
 09/20/2025   18:18:29   ( -74.32,  73.69) 09/20/2025   18:18:51  ( -74.32,  73.65)    1.17                22
 09/20/2025   19:09:14   (  74.27,-118.90) 09/20/2025   19:08:09  (  74.26,-118.80)    3.24                65
 09/23/2025   04:40:09   (  74.32,  98.25) 09/23/2025   04:40:21  (  74.32,  98.23)    0.67                12